Improvement in street-lamps



GLGUPPERS;

, Street Lamp. No, 107,884. Patented 001;. 4, 18-70.

NPEYERS, PHDm-LITHOGRAPHER, WASHINGTON. D C

Taall whom it may concern i T we atria.

"*ensrayns ehBPhhalflrNEw'YORKyNufi Letters Patent N magma OdtObBl 4,1870; anadaaa September 21,1870.

lMPROVEMENTlN STREET-VLAMPS. l

, ilfli schedule re'ferred to in these Letters Patent and making part of the same.

Be it known that I, GUSTAVUS Corrnnsof the city, county,v and'Stat e of :New York, have invented a; new and usefnl Improvement in' Lamps and I. do hereby declare the following to be a full, cleaig and.

exact description thereof,,whichwill enable those skilled ill-the art toimake and usethesame, refer ence being'hadtothe accompanying'drawing forming partof thisjspecification, in which drawing- Figure 1 tepreseuts a vertical central section of this invention.

i' l jigure2 is'a ho'rizontalsection of thesame. Similar-letters, indicate corresponding parts; This inrentiomrelates; to street-lamps, composed ofa metal frame-formed to receive aninverted cone, which is made of glass or other transparent material,

in one-piece, and without aseam, in such an anner that the construction of the lamp is materially sim- The top rim or flange of the metal frame i819)- vided with apconcaye socket torecei-ve a correspond:

lug lug projectingfiomthe fram'eof the dome, in. such a manner that, -by the socket audlug, a joint is formed, whichallows of opening and closing s'aid' dome, 'and,at the same time, the dome can be lifted clear off whenever it maybe desired.

The gas-burner is. surrounded by a conical airt1 1be, whichisopen atitop and bottom, and supported by studs radiating from the, burner, or from the pipe ltojfwhiclfsaid burner .isfattached, in such a-manner that the current-of air created up through the co'ni-' cal airtube,'. hereby;thaibrilliancy of the flame is materially increased. 1

; In the drawing- The letter. Arrepresents the frame" of'lny. lamp,

which is composed of a circulartop ring orvflange, a, Land abase-ring'b, the tworiugsj-beiug connectedby bracesor bars, 0, which are; securedtothe samc'by screws d, or in any-other. desirable manner,

Thehrings a], andbformthe vguides to retain and steady theuinvertedacone B, which is made of one piece offglass'or other transparent material, and placed loosely-in between; the rings, so that all the labor usually required forcutting, fitting, and securing the paue sofc glass is saved, and a iamp'is obtainedwhich :is rerysimple in its construction, and. ,whichofi'ers theleast possible obstrdction to the rays of light emitted by the flame in its interior.

Thetop ring is provided with-a scmi cylindrical socket, d, to receivefla -cylindrical lug, c, which project-sfroni the ring or frame 0, supporting the domeD.

An arn1,.j, extendingfrom the lug 0, passes down through, auopeuingin the socket d, and assists, in .holding the frame 0 in position; a Thedome D, is secured in the fralne'OTby cement, .or by othersuitablemeans, and, by the lug c and maybe desirable. a V

Saiddomc is made of semr transpareut material,

socket a hinge-joint is formed, so 'that'the dome can be readily turned up for the purpose of lighting the gas, or it can be taken off entirely wheneverit such as milk or ground glass, audit is provided with a flat, rim, g,-onwhich the name of .a street or of the proprietor of a house or business place can be Wl'ltten, and the top of the dome is'made to form the secp tion'of a; sphere, the center of avhich coincides with the flame, so, that it'rcfiects the rays'of lighteinitted by by said flame with-the best possible effect. The re-r' fleeting surface of the dome]) may he enameled sheet;

metal.

A 011;),13, slur-mounts the dome, and this cap is con-Q s'tructed of glass or any other material, and it is ap plied in such a manner that it does not obstrnctkthc escape of the products of combustion, while'itpre} vents the rain, from passingdown to the flame, or

into the interior ofthe lamp.

The base ring bisuprovided with a bracket, It, by means of which theiamp can be conveniently secured j to a post,

Through the opening of the ba e ring extends' 'the 1 gas-pipe '1", to which is secured the burner j, and over this burner is placed a conical air-tube, k,-which rests npon'stnds l, radiating from the burner orfrom the By this conical tube a current ot air-is conducted to the flame, and thereby the brilliancyof the light is materially increased.

pipe supporting the same.

For oil, the former shape of the glass-cone is changed, so as to make "room for the oil-cistern'1 tli glass cone-being supported in the same manneras.

above described.

If desired, the lamp can be suspended from chains,

or-put up in anydesired manner.

What I claim as new, and desire to secureby Letters Patent, is-

I 1.- The reflecting-dome D, provided'with the flat transparent port-ion g, substantially as and for the purpose described. 2. The cone B and its frame A,-co'nsisting of flange a, socketd', base ring I), and bars 0, in combination with the dome D, with frame O, lugs e, and arm substantially as and for the purpose described.

I 3. The top ring a, formed with a semi-cylindrical socket, ll, and an opening, in combination with the cylindrical lug e, and the arm f extendedtherefrom on the frame Q, substantially as and-for the purpose described. v 4. The conical. air-tube It, supported by studs radiating from theburner or thepipc to which saidburner is attached, substantially as herein set forth;-

WVitnesses: I W. Hanna: E. F, KAsTEnHUBnR.

GUSTAV US CUPPERS. 

